module Gargantext.Components.Bootstrap.FormTextarea (formTextarea) where

import Gargantext.Prelude

import Data.Foldable (elem, intercalate)
import Effect (Effect)
import Gargantext.Components.Bootstrap.Types (ComponentStatus(..))
import Gargantext.Utils.Reactix as R2
import Reactix as R
import Reactix.DOM.HTML as H
import Unsafe.Coerce (unsafeCoerce)

type Props =
  ( callback :: String -> Effect Unit
  , value :: String
  | Options
  )

type Options =
  ( status :: ComponentStatus
  , className :: String
  , placeholder :: String
  , rows :: Int
  )

options :: Record Options
options =
  { status: Enabled
  , className: ""
  , placeholder: ""
  , rows: 2
  }

-- | Structural Component for the Bootstrap textarea
-- |
-- | https://getbootstrap.com/docs/4.1/components/forms/
formTextarea :: forall r. R2.OptLeaf Options Props r
formTextarea = R2.optLeaf component options

componentName :: String
componentName = "b-form-textarea"

bootstrapName :: String
bootstrapName = "form-control"

component :: R.Component Props
component = R.hooksComponent componentName cpt
  where
  cpt
    props@
      { callback
      , status
      , rows
      }
    _ = do
    -- Computed
    className <- pure $ intercalate " "
      -- provided custom className
      [ props.className
      -- BEM classNames
      , componentName
      , componentName <> "--" <> show status
      -- Bootstrap specific classNames
      , bootstrapName
      ]

    change <- pure $ onChange status callback

    -- Render
    pure $
      H.textarea
        { className
        , on: { change }
        , disabled: elem status [ Disabled ]
        , readOnly: elem status [ Idled ]
        , placeholder: props.placeholder
        , autoComplete: "off"
        , rows
        }
        []

-- | * Change event will effectively be triggered according to the
-- | component status props
-- | * Also directly returns the newly input value
-- | (usage not so different from `targetValue` of ReactBasic)
onChange
  :: forall event
   . ComponentStatus
  -> (String -> Effect Unit)
  -> event
  -> Effect Unit
onChange status callback event = do
  if status == Enabled then callback $ (unsafeCoerce event).target.value
  else pure unit